[polly] r198364 - ScopInfo: Ensure the RegionInfo analysis is always available

[Tobias Grosser]

Author: grosser
Date: Thu Jan  2 16:28:53 2014
New Revision: 198364

URL: http://llvm.org/viewvc/llvm-project?rev=198364&view=rev
Log:
ScopInfo: Ensure the RegionInfo analysis is always available

This fixes a crash that appeared when generating dotty graphs for functions
without loops (for which we do not calculate polyhedral information).

Modified:
    polly/trunk/lib/Analysis/ScopDetection.cpp

Modified: polly/trunk/lib/Analysis/ScopDetection.cpp
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/lib/Analysis/ScopDetection.cpp?rev=198364&r1=198363&r2=198364&view=diff
==============================================================================
--- polly/trunk/lib/Analysis/ScopDetection.cpp (original)
+++ polly/trunk/lib/Analysis/ScopDetection.cpp Thu Jan  2 16:28:53 2014
@@ -714,12 +714,12 @@ void ScopDetection::printLocations(llvm:
 
 bool ScopDetection::runOnFunction(llvm::Function &F) {
   LI = &getAnalysis<LoopInfo>();
+  RI = &getAnalysis<RegionInfo>();
   if (!DetectScopsWithoutLoops && LI->empty())
     return false;
 
   AA = &getAnalysis<AliasAnalysis>();
   SE = &getAnalysis<ScalarEvolution>();
-  RI = &getAnalysis<RegionInfo>();
   Region *TopRegion = RI->getTopLevelRegion();
 
   releaseMemory();